Because lemon juice is so potent, you only need a little in water, with sugar added to make a nice tangy citrus drink with vitamin C. So a bottle this size lasts a long time. For adults, it tastes good with a splash of vodka in your lemon drink too... a lemon version of a screwdriver!
For those beginner or non-pro cooks, try to splash a few drops on your eggs, or meat... yum! Add a cap-full or 2 into your soups, gravies, sauces, stews, veggies, potatoes, salad or spaghetti, & they'll be begging you for the recipe. Use it as a substitute for any recipe calling for vinegar (even wine or apple vinegar), for a new, wonderful, superior taste. Even a cap-full in ordinary Ramen soup, suddenly tastes almost gourmet!
No cook should be without a big bottle of this, plus you get an economical source of delicious citrus juice or real lemonade (not that artifical garbage).